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<DIV dir=ltr align=left><FONT face=Arial size=2><SPAN
class=179534513-25112009>Dear all!</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial size=2><SPAN
class=179534513-25112009></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial size=2><SPAN
class=179534513-25112009>It's good to see that you are discussing this topic
concerning Type 2b, because I'm also having some problems to make this type do
what I want it to.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial size=2><SPAN
class=179534513-25112009></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial size=2><SPAN class=179534513-25112009>I
have a solarthermal system which is using a water tank in order to save the
heat. What I want to do is to control the pump in my system via Type 2b. I want
the pump to work only if the difference between the average tank
temperature and the outlet fluid temperature of the evacuated tube collectors is
more than 5K. Of course, the outlet fluid temperature of the collectors has to
be the higher temperature.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial size=2><SPAN
class=179534513-25112009></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial size=2><SPAN
class=179534513-25112009>Is it possible to use Type 2b in order to solve this
problem or should I use another controller? In this case, which one would be the
best one?</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial size=2><SPAN
class=179534513-25112009></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial size=2><SPAN
class=179534513-25112009>Any help would highly be
appreciated!</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<P style="MARGIN-TOP: 8px; MARGIN-BOTTOM: 0px"><FONT face=Arial><FONT
style="FONT-SIZE: 10pt; COLOR: #000000">Mit freundlichen Grüßen<BR></FONT><FONT
style="FONT-SIZE: 10pt; COLOR: #000000">Christopher Haluf <SPAN
class=179534513-25112009>(</SPAN></FONT><SPAN class=179534513-25112009><FONT
size=2>Intern)</FONT></SPAN></FONT></P>
<P style="MARGIN-TOP: 8px; MARGIN-BOTTOM: 0px"><FONT face=Arial color=#0000ff
size=2></FONT><BR><FONT style="FONT-SIZE: 10pt; COLOR: #000000"
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(9131) 7-24724 <BR>Fax: +49 (9131) 7-21339 <BR><A
href="mailto:christopher.haluf@siemens.com">mailto:christopher.haluf@siemens.com</A>
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style="MARGIN-TOP: 8px; MARGIN-BOTTOM: 0px; COLOR: #000000"><FONT
style="FONT-SIZE: 8pt; COLOR: #000000" face=Arial>Siemens Aktiengesellschaft:
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<DIV class=OutlookMessageHeader lang=de dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>Von:</B> Francois Badinier
[mailto:francois.badinier@icax.co.uk] <BR><B>Gesendet:</B> Mittwoch, 25.
November 2009 14:37<BR><B>An:</B> 'Besana Francesco';
trnsys-users@cae.wisc.edu<BR><B>Betreff:</B> Re: [TRNSYS-users] Type-2b???
(part2)<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoPlainText><SPAN
style="FONT-SIZE: 11pt; COLOR: #7030a0; FONT-FAMILY: 'Calibri','sans-serif'">Francesco<o:p></o:p></SPAN></P>
<P class=MsoPlainText><SPAN
style="FONT-SIZE: 11pt; COLOR: #7030a0; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoPlainText><SPAN
style="FONT-SIZE: 11pt; COLOR: #7030a0; FONT-FAMILY: 'Calibri','sans-serif'">Sorry
I just missed one thing:<o:p></o:p></SPAN></P>
<P class=MsoPlainText
style="MARGIN-LEFT: 36pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo1"><![if !supportLists]><SPAN
style="FONT-SIZE: 11pt; COLOR: #7030a0; FONT-FAMILY: 'Calibri','sans-serif'"><SPAN
style="mso-list: Ignore">-<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><![endif]><SPAN
style="FONT-SIZE: 11pt; COLOR: #7030a0; FONT-FAMILY: 'Calibri','sans-serif'">You
have to set your “lower input temperature” to 20.5, as it is now your fixed
temperature to compare with.<o:p></o:p></SPAN></P>
<P class=MsoPlainText><SPAN
style="FONT-SIZE: 11pt; COLOR: #7030a0; FONT-FAMILY: 'Calibri','sans-serif'">I
forgot to do that in the modified project... sorry my bad.<o:p></o:p></SPAN></P>
<P class=MsoPlainText><SPAN
style="FONT-SIZE: 11pt; COLOR: #7030a0; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoPlainText><SPAN
style="FONT-SIZE: 11pt; COLOR: #7030a0; FONT-FAMILY: 'Calibri','sans-serif'">However,
you’ll see that the signal won’t go to 0 when it reaches 22 C (in your
schedule), as it has to strictly go over 22 for the signal to switch to 0. So if
you put in your schedule 23C instead of 22C, you’ll see the signal
switching.<o:p></o:p></SPAN></P>
<P class=MsoPlainText><SPAN
style="FONT-SIZE: 11pt; COLOR: #7030a0; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoPlainText><SPAN
style="FONT-SIZE: 11pt; COLOR: #7030a0; FONT-FAMILY: 'Calibri','sans-serif'">Regards,<o:p></o:p></SPAN></P>
<P class=MsoPlainText><SPAN
style="FONT-SIZE: 11pt; COLOR: #7030a0; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal>François Badinier<o:p></o:p></P>
<P class=MsoNormal><SPAN style="COLOR: #c0504d">Development
Engineer<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="COLOR: #00b050">ICAX Ltd<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 9pt; COLOR: #00b050">1 Hatfield House
<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 9pt; COLOR: #00b050">Baltic Street
West<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 9pt; COLOR: #00b050">London EC1Y
OST<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=FR
style="FONT-SIZE: 8pt; COLOR: black; FONT-FAMILY: 'Courier New'"><A
href="mailto:alan.kiff@icax.co.uk"><SPAN lang=EN-GB
style="COLOR: blue">francois.badinier@icax.co.uk</SPAN></A></SPAN><SPAN
style="FONT-SIZE: 8pt; COLOR: black; FONT-FAMILY: 'Courier New'"><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=FR
style="FONT-SIZE: 8pt; COLOR: black; FONT-FAMILY: 'Courier New'"><A
href="http://www.icax.co.uk"><SPAN lang=EN-GB
style="COLOR: blue">www.icax.co.uk</SPAN></A></SPAN><SPAN
style="FONT-SIZE: 8pt; COLOR: black; FONT-FAMILY: 'Courier New'"><o:p></o:p></SPAN></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoPlainText><SPAN
style="FONT-SIZE: 11pt; COLOR: #7030a0; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoPlainText><o:p> </o:p></P>
<P class=MsoPlainText><SPAN lang=EN-US>-----Original Message-----<BR>From:
Besana Francesco [mailto:Francesco.Besana@eurac.edu] <BR>Sent: 25 November 2009
11:06<BR>To: trnsys-users@cae.wisc.edu<BR>Subject: [TRNSYS-users]
Type-2b???</SPAN></P>
<P class=MsoPlainText><o:p> </o:p></P>
<P class=MsoPlainText>Dear Trnsys-colleague,<o:p></o:p></P>
<P class=MsoPlainText>It is unbelievable but I have spend more than one hour on
that and still doesn't work...the point is:<o:p></o:p></P>
<P class=MsoPlainText> <o:p></o:p></P>
<P class=MsoPlainText>I would like to switch off a signal when the difference
between the High Temp (fix to 22 ) and Low Temp is less than 0 and switch on
again when the difference is higher than 1.5..are you able to do
that?<o:p></o:p></P>
<P class=MsoPlainText> <o:p></o:p></P>
<P class=MsoPlainText>At the moment in my deck (attached) it seems that instead
off an hysteresis loop I have just a value limit 1.5 where is ON and OFF around
it!!!<o:p></o:p></P>
<P class=MsoPlainText> <o:p></o:p></P>
<P class=MsoPlainText>Thanks a lot and suggestions are well
accepted<o:p></o:p></P>
<P class=MsoPlainText> <o:p></o:p></P>
<P class=MsoPlainText>Francesco<o:p></o:p></P>
<P class=MsoPlainText> <o:p></o:p></P>
<P class=MsoPlainText><o:p> </o:p></P>
<P class=MsoPlainText>No virus found in this incoming message.<o:p></o:p></P>
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